Compared with EAF process， BOF process for producing bearing steel has many advantages such as higher steel cleanliness， better product quality， higher production efficiency and lower cost. The GCr15 steel grade had been produced in Bengang steelmaking works by adopting BOF—secondary metallurgy（LF+RH）—bloom caster process. All the chemical elements of GCr15 steel reached the standard demand that was established by Bengang. Its harmful elements such as w（［Ti］）=25×10 ^-6 ， w（［Ca］）=2×10 ^-6 ， w（［O］）=8×10 ^-6 ， w（［N］）=38×10 ^-6 ， w（［H］） =0.8×10 ^-6 ， were all precede the demand of GB/T 18254-2002 standard， and also met the demand of Sweden SKF standard（SKF D33）.